I just spent a month at Eva's and I have no hesitation giving it my highest recommendation. The location is ideal, situated within walking distance to a large variety of epicurean pleasures, but just private enough to feel protected from the city's busy pulse. You can find delicious street food, hip bars, rooftop restaurants, organic groceries and massages all within walking distance or a short Uber ride.
The apartment itself was beautiful, clean and exactly like the pictures. The AC will keep the place plenty cool in the hot/humid summer months and the Internet connection was recently upgraded and proved to be reliable and fast. I also really enjoyed the rooftop pool which boasts a semi-panoramic view of the city and was surprisingly private during the daytime making it feel like one's very own pool. Beyond this, the small gym and cardio rooms adjacent to the pool were clean, air conditioned and well-equipped.
And of course the city of Bangkok is amazing and Eva's place, being centrally located, proved to be a good home base for longer excursions out of the neighborhood.
Very happy with my experience and the great and speedy communication with Eva and her colleague Chai during my stay.